TAILIEUCHUNG - Báo cáo khoa học: "Synthesis and analysis of biomass and net primary productivity in Chinese forests"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Synthesis and analysis of biomass and net primary productivity in Chinese forests. | 351 Ann. For. Sci. 58 2001 351-384 INRA EDP Sciences 2001 Original article Synthesis and analysis of biomass and net primary productivity in Chinese forests JianNia b Xin-Shi Zhangaand Jonathan . Scurlockc Laboratory of Quantitative Vegetation Ecology Institute of Botany Chinese Academy of Sciences Xiangshan Nanxincun 20 100093 Beijing P. R. China bDepartment of Ecology Plant Ecology Lund University Solvegatan 37 22362 Lund Sweden c Environmental Sciences Division Oak Ridge National Laboratory PO Box 2008 Oak Ridge TN 37831-6407 USA Received 27 January 2000 accepted 5 October 2000 Abstract - An extant dataset is presented on biomass and net primary productivity NPP of 6 forest biomes including 690 stands from 17 forest types of China. Data on latitude longitude elevation field measurements of stand age leaf area index LAI and total biomass were collected for 29 provinces from forestry inventory data of the Forestry Ministry of China as well as a wide range of published literature. The individual site-based NPP was estimated from field biomass measurements based on a common methodology. The range of measuredLAI biomass and estimated NPP is from to m2 m-2 mean from to tha-1 means and from to ha-1 yr-1 mean respectively. Analyses and synthesis between NPP and environmental factors showed that in eastern China NPP of forests increases from north to south whereas NPP of major forests in southern China decreases in relation to longitude from east to west. In mountainous areas the distribution of NPP is related to elevation. On a regional basis the NPP of Chinese forests is highly correlated with annual mean temperature and rainfall as well as the annual potential evapotranspiration especially on the basis of site-based comparison. Strong positive correlation also existed between NPP and growing degree-days on a 0 C base and on a 5 C base. These all indicated that temperature and moisture are the dominant factors .

• Báo cáo khoa học
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp